Rapid Determination of Leaf Water Content Using VIS/NIR Spectroscopy Analysis with Wavelength Selection

Table 2

The results of calibration and prediction sets by PLS models with different preprocessing method.

Methods	Number of variable	LVs	Calibration		Prediction
			RMSECV (%)	𝑅^2	RMSEP (%)	𝑅^2	RPD
None	701	6	1.1	0.871	1.2	0.871	2.86
MA(9)	701	6	1.1	0.909	1.2	0.874	2.91
SG(7)	701	6	1.1	0.914	1.2	0.883	3.04
MA + MSC	701	5	1.5	0.842	1.4	0.832	2.54
SG (25) + D1	701	5	1.4	0.862	1.0	0.920	3.66
SG (25) + D2	701	5	2.7	0.486	2.9	0.30	1.22

The number given in brackets is the half width of smooth window.